Parts & Accessories

When Quarq set out to build their next-generation power meter, they wanted to build the best-performing power meter for every facet of cycling and triathlon, and for riders at every level. Like its Quarq brethren, the DFour measures power in the heart of the bicycle—the crankset spider, scientifically proven to be the place for the most accurate measurement. With a new measurement circuit, revised strain gauge design, improved accuracy throughout the pedal stroke and software advances built into the Qalvin App, the DFour Spider represents the state of the art in power meter technology
- The DFour Spider is a bolt-on upgrade for Shimano’s 11-speed Dura-Ace 9000, Ultegra 6800 and 105 5800 chainrings.
- Bluetooth low energy technology and ANT+ wireless data transfer.
- 10K Temperature Compensation.
- Battery - CR2032, 200-hour battery life, change without tools.
- OmniCal - swap chainrings without affecting accuracy.
- IPX7 waterproof rating.
- Accuracy within 1.5%

The new G4 picks up where the famous G3 left off — three consecutive appearances in the Dirt 100 issue, as well as countless World Cup and FMB podiums made it the most sought after full-featured guide on the market. Upgrades to the G4 include a new co-molded upper guide that utilizes a softer durometer TPU material on the interior walls and ceiling to silence drivetrain chatter. An improved material formula is utilized in the updated skid — making the best even better.
- NEW Full-size, nylon upper guide with co-molded TPU material on the interior walls and ceiling that silences chain contact.
- Integrated skid protects chainrings and glides over rocks and obstacles.
- Includes standard pulley and G-slide slider block for quiet, dependable operation in muddy and dank conditions.
- Compatible with chainlines 50mm and wider (55mm and wider on 83mm BB shells)

The newly redesigned All-Mountain Guide is the love child of two innovative and revered product lines, the 1x and XCg. Perfectly suited to the increasingly popular all-mountain segment, the All-Mountain Guide shares the freshly updated "TR" upper guide with the 1x, and adds MRP's patented integrated skid. The All-Mountain Guide is a great choice for 5-6" travel bikes when used with the latest tensioned rear derailleurs or on its own for shorter-travel trail bikes or hardtails that require bash protection. The contact-free, "upper-only" chain retention means the All-Mountain Guide will be virtually silent and completely drag-free when pedaling. The patented integrated skid will protect your crank and chainring and prevent the chain from ever contacting and potentially damaging your expensive frame.
- Perfect for "clutched" 1x10 and 1x11 drivetrains, as well as those using chain-retaining rings (like our Wave Ring)
- New nylon integrated skid protects chainrings and glides over rocks and obstacles
- Tracked and grooved upper guide / backplate interface increases stiffness and eases installation
- New co-molded "TR" upper guide with softer durometer interior for silent guidance
- Available in 28-32t and 32-38t sizing
- All install and adjustment operations possible with just a single 4mm HEX wrench.
- Compatible with chainlines 49mm and wider

The new G4 picks up where the famous G3 left off — three consecutive appearances in the Dirt 100 issue, as well as countless World Cup and FMB podiums made it the most sought after full-featured guide on the market. Upgrades to the G4 include a new co-molded upper guide that utilizes a softer durometer TPU material on the interior walls and ceiling to silence drivetrain chatter. An improved material formula is utilized in the updated skid — making the best even better.
- NEW Full-size, nylon upper guide with co-molded TPU material on the interior walls and ceiling that silences chain contact.
- Integrated skid protects chainrings and glides over rocks and obstacles.
- Includes standard pulley and G-slide slider block for quiet, dependable operation in muddy and dank conditions.
- Available in "Mini" 32-36t and "Mega" 36-40t sizing
- Compatible with chainlines 50mm and wider (55mm and wider on 83mm BB shells)

With the SXg, MRP delivers a guide without compromise and with no equal. No longer does the desire for protection and both upper and lower retention have to come at the expense of weight, efficiency, or the addition of moving parts - have your cake and eat it too. With the SXg covering all those bases, it’s the first guide in history that’s equally at home on anything from aggressive, short-travel bikes to Armageddon-ready Rampage rigs, and everywhere in-between. It’s a guide that refuses to be pigeon-holed, blurring the lines between typical industry definitions - a little country and a little rock, as they say. But, in this case, it’s a whole lotta rock.
High-security chain retention and bulletproof chainring defense in an innovative, lightweight package with zero efficiency loss make the SXg ideal for a wide range of uses. Whippersnapper™ technology provides lower retention without moving parts or friction. The most advanced chainguide on the market, the SXg is the go-to of the top Rampage stuntmen, World Cup downhill pilots, and superhuman enduro tacticians.
- Whippersnapper™ lower guide.
- Full-size, nylon HD upper guide with co-molding.
- Integrated SX skid provides safeguard to the chainring and glides over rocks and obstacles.
- Nylon and TPU co-molding in the Whippersnapper™ provides durable protection from external blows and mutes internal contact with the chain.
- Swingset™ hardware.
- All installation and adjustment operations are possible with just a single 4mm HEX wrench.
- Available in 30-34t and 34-38t sizing.
- Alloy guides compatible with chainlines 49mm and wider, carbon 50mm and wider. Boost 148 compatible.
- ISCG-05 only.
- 149g (34-38t Alloy ISCG-05)

Designed to work seamlessly with the new wave of 2×10 drivetrains, the 2x utilizes MRP's patented integrated skid chainring protection (US Patents RE 42,436 / 8,235,849 Patents Pending) and features a dual pulley tensioning system. Notable on the 2x system is the absence of a crank-mounted bash guard or guide ring, instead it relies on the front derailleur and cutting-edge lower pulley assembly for complete chain retention. The integrated skid protects the chainrings from impacts without the added weight of a full bash ring. The dual pulley tensioning system ensures that the chain is properly tensioned and in the right position, keeping it on the chainring in the roughest conditions. The dual pulleys also reduce drag and noise compared to other designs, ensuring a better riding experience. Finally, the raised top fin profile prevents the chain from dropping to the BB shell.
- Removable integrated skid protects chainrings and glides over rocks and obstacles
- Dual pulley design provides precise chain engagement while reducing noise and drag
- Raised top fin profile prevents the chain from dropping to the BB shell
- BB mounted guides are only compatible with traditional, threaded BB systems

The 1x guide is the definitive cross-country chainguide. Used on the World Cup circuit and even in the 2012 London Olympics, the 1x has a proven track record of dependability and performance. The 1x is the perfect guide for riders and racers wanting a lightweight single-ring front drivetrain for cross-country use or riders wishing for more security out of their "narrow/wide" or XX1/X01 setups. Freshly updated for 2015 with the new co-molded "TR" upper guide - lighter and quieter, what's not to love?
- Adds security to "narrow/wide" 1x10/11 and XX1/X01 drivetrains
- Most models accommodate 26-38t chainrings
- Tracked and grooved upper guide / backplate interface increases stiffness and eases installation
- New co-molded "TR" upper guide with softer durometer interior for silent guidance
- All install and adjustment operations possible with just a single 4mm HEX wrench.
- BB mounted guides are only compatible with traditional, threaded BB systems

The North Shore Billet 1×11 Spider replaces the removable chain ring spider so that you can run a SRAM XX1 chain ring on Truvativ X0, X01, X1, X9, GX, S2210, and S1400 cranks. There are no mounting holes for the granny ring and the single ring’s position is designed to give a better chain line throughout the entire gear range. The chain ring tabs accept an optional rock ring for All Mountain or Enduro riding.

The North Shore Billet 2×10 Spider replaces the stock chainring spider so that you can run smaller chainrings on SRAM XX1, X01, X1, X0, X9, X7, and GX cranks using GXP bottom brackets. With the NSB 2×10 Spider you can run a more traditional 22/32T or 24/34T combination. The NSB 2×10 Spider is designed to use any standard 64 / 104 BCD 9 speed chainring. The distance between the rings and the distance from the centre of the bottom bracket is the same as the 120 BCD spider so the set up is simple and the shifting is quick!

Wolf Tooth's CAMO stands for Chainline and Material Optimization. Available in various chainlines and spider configurations, CAMO spiders allow the use of previously unavailable chainring styles, materials, and chainlines in a lightweight, modular, and customizable package. These spiders are for use with Cannondale cranksets that have removable spiders/chainrings and are only compatible with CAMO rings and bolts. Three different chainline options are available. The number and letter refer to the mm offset and direction from the mounting face to the centerline of the teeth: - M4 (minus 4mm - dished toward the frame): For Cannondale bikes with the Ai (asymmetric integration) offset rear triangle AND all Cannondale 27.5 Plus bikes - M9 (minus 9mm - dished toward the frame): For standard (non-Ai offset) bikes - M1 (minus 1mm - dished toward the frame): For the Fat CAAD only

Wolf Tooth's CAMO stands for Chainline and Material Optimization. Available in various chainlines and spider configurations, CAMO spiders allow the use of previously unavailable chainring styles, materials, and chainlines in a lightweight, modular, and customizable package. These spiders are for use with the RaceFace cranksets that have removable Cinch spiders/chainrings and are only compatible with CAMO rings and bolts. Three different chainline options are available. The number and letter refer to the mm offset and direction from the mounting face to the centerline of the teeth: - M8 (minus 8mm - dished toward the frame): For 49mm chainline, used with GXP and long-spindle BB30 cranks. Designed for bikes with 135mm QR, 142mm thru axle, and some 148mm bikes. - M5 (minus 5mm - dished toward the frame): For 52mm chainline (Boost) - P2 (plus 2mm - dished outward away from the frame): For fat bikes that have 190/197 rear spacing but use a 100mm-spindle crank

Wolf Tooth's CAMO stands for Chainline and Material Optimization. Available in various chainlines and spider configurations, CAMO spiders allow the use of previously unavailable chainring styles, materials, and chainlines in a lightweight, modular, and customizable package. These spiders are for use with the SRAM cranksets that have removable Direct Mount spiders and are only compatible with CAMO rings and bolts. Four different chainline options are available. The number and letter refer to the mm offset and direction from the mounting face to the centerline of the teeth: - M8 (minus 8mm - dished toward the frame): For 49mm chainline, used with GXP and long-spindle BB30 cranks. Designed for bikes with 135mm QR, 142mm thru axle, and some 148mm bikes. - M5 (minus 5mm - dished toward the frame): For 52mm chainline (Boost) - M2 (minus 2mm - dished toward the frame): For 49mm chainline on short-spindle BB30 cranks - P2 (plus 2mm - dished outward away from the frame): For fat bikes that have 190/197 rear spacing but use a 100mm-spindle crank. Can also be used to achieve a Boost chainline with a short-spindle BB30 crank.

Wolf Tooth's CAMO stands for Chainline and Material Optimization. Available in various chainlines and spider configurations, CAMO spiders allow the use of previously unavailable chainring styles, materials, and chainlines in a lightweight, modular, and customizable package. These spiders are for use with e*thirteen cranksets that have removable spiders/chainrings and are only compatible with CAMO rings and bolts. One chainline option is available for e*thirteen cranks. The number and letter refer to the mm offset and direction from the mounting face to the centerline of the teeth: - M8 (minus 8mm - dished toward the frame): For 49mm chainline, designed for bikes with 135mm QR, 142mm thru axle, and some 148mm bikes.

SRAM’s cranks are strong and tough, ready for any kind of ride. So it’s inevitable that pedal strikes and debris will chip away at the end of the crank. SRAM’s Carbon Crank Boot is an upgrade that combats the wear and tear that comes with hard riding. The boot protects the crank from surface damage and keeps the rider’s style perfectly intact.

SRAM’s cranks are strong and tough, ready for any kind of ride. So it’s inevitable that pedal strikes and debris will chip away at the end of the crank. SRAM’s Carbon Crank Boot is an upgrade that combats the wear and tear that comes with hard riding. The boot protects the crank from surface damage and keeps the rider’s style perfectly in tact.
- Injection molded plastic crank arm protection
- Perfect way to protect your carbon crank investment from scratches and dents from pedal strikes
- Material: Injection molded plastic
- Recommended Group: XX1, X01, XX, X0